That's Me

On the late William Safire:

Though he jokingly anointed himself “Usage Dictator,” he was never comfortable with expectations that he play the part of language absolutist, handing down infallible decrees. “Maven” was a title more to his liking, a Yiddishism that he said contained its own “note of self-mockery.” (An incurable paronomasiac, he also enjoyed punning off the word, as in his 1993 collection of columns, “Quoth the Maven.”)

Paronomasiac - one addicted to word play or puns.